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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
26ef0cc7 | 23 | * Copyright (c) 2012, 2015 by Delphix. All rights reserved. |
0241e491 | 24 | * Copyright (c) 2017, Intel Corporation. |
34dc7c2f BB |
25 | */ |
26 | ||
34dc7c2f BB |
27 | /* |
28 | * ZFS Fault Injector | |
29 | * | |
30 | * This userland component takes a set of options and uses libzpool to translate | |
31 | * from a user-visible object type and name to an internal representation. | |
32 | * There are two basic types of faults: device faults and data faults. | |
33 | * | |
34 | * | |
35 | * DEVICE FAULTS | |
36 | * | |
37 | * Errors can be injected into a particular vdev using the '-d' option. This | |
38 | * option takes a path or vdev GUID to uniquely identify the device within a | |
d977122d DB |
39 | * pool. There are four types of errors that can be injected, IO, ENXIO, |
40 | * ECHILD, and EILSEQ. These can be controlled through the '-e' option and the | |
41 | * default is ENXIO. For EIO failures, any attempt to read data from the device | |
42 | * will return EIO, but a subsequent attempt to reopen the device will succeed. | |
43 | * For ENXIO failures, any attempt to read from the device will return EIO, but | |
44 | * any attempt to reopen the device will also return ENXIO. The EILSEQ failures | |
45 | * only apply to read operations (-T read) and will flip a bit after the device | |
46 | * has read the original data. | |
47 | * | |
b128c09f | 48 | * For label faults, the -L option must be specified. This allows faults |
428870ff BB |
49 | * to be injected into either the nvlist, uberblock, pad1, or pad2 region |
50 | * of all the labels for the specified device. | |
34dc7c2f BB |
51 | * |
52 | * This form of the command looks like: | |
53 | * | |
428870ff | 54 | * zinject -d device [-e errno] [-L <uber | nvlist | pad1 | pad2>] pool |
34dc7c2f BB |
55 | * |
56 | * | |
57 | * DATA FAULTS | |
58 | * | |
59 | * We begin with a tuple of the form: | |
60 | * | |
61 | * <type,level,range,object> | |
62 | * | |
63 | * type A string describing the type of data to target. Each type | |
64 | * implicitly describes how to interpret 'object'. Currently, | |
65 | * the following values are supported: | |
66 | * | |
67 | * data User data for a file | |
68 | * dnode Dnode for a file or directory | |
69 | * | |
70 | * The following MOS objects are special. Instead of injecting | |
71 | * errors on a particular object or blkid, we inject errors across | |
72 | * all objects of the given type. | |
73 | * | |
74 | * mos Any data in the MOS | |
75 | * mosdir object directory | |
76 | * config pool configuration | |
428870ff | 77 | * bpobj blkptr list |
34dc7c2f BB |
78 | * spacemap spacemap |
79 | * metaslab metaslab | |
80 | * errlog persistent error log | |
81 | * | |
82 | * level Object level. Defaults to '0', not applicable to all types. If | |
83 | * a range is given, this corresponds to the indirect block | |
84 | * corresponding to the specific range. | |
85 | * | |
86 | * range A numerical range [start,end) within the object. Defaults to | |
87 | * the full size of the file. | |
88 | * | |
89 | * object A string describing the logical location of the object. For | |
90 | * files and directories (currently the only supported types), | |
91 | * this is the path of the object on disk. | |
92 | * | |
93 | * This is translated, via libzpool, into the following internal representation: | |
94 | * | |
95 | * <type,objset,object,level,range> | |
96 | * | |
97 | * These types should be self-explanatory. This tuple is then passed to the | |
98 | * kernel via a special ioctl() to initiate fault injection for the given | |
99 | * object. Note that 'type' is not strictly necessary for fault injection, but | |
100 | * is used when translating existing faults into a human-readable string. | |
101 | * | |
102 | * | |
103 | * The command itself takes one of the forms: | |
104 | * | |
105 | * zinject | |
106 | * zinject <-a | -u pool> | |
107 | * zinject -c <id|all> | |
108 | * zinject [-q] <-t type> [-f freq] [-u] [-a] [-m] [-e errno] [-l level] | |
109 | * [-r range] <object> | |
110 | * zinject [-f freq] [-a] [-m] [-u] -b objset:object:level:start:end pool | |
111 | * | |
112 | * With no arguments, the command prints all currently registered injection | |
113 | * handlers, with their numeric identifiers. | |
114 | * | |
115 | * The '-c' option will clear the given handler, or all handlers if 'all' is | |
116 | * specified. | |
117 | * | |
118 | * The '-e' option takes a string describing the errno to simulate. This must | |
c3bd3fb4 TC |
119 | * be one of 'io', 'checksum', 'decompress', or 'decrypt'. In most cases this |
120 | * will result in the same behavior, but RAID-Z will produce a different set of | |
121 | * ereports for this situation. | |
34dc7c2f BB |
122 | * |
123 | * The '-a', '-u', and '-m' flags toggle internal flush behavior. If '-a' is | |
124 | * specified, then the ARC cache is flushed appropriately. If '-u' is | |
125 | * specified, then the underlying SPA is unloaded. Either of these flags can be | |
126 | * specified independently of any other handlers. The '-m' flag automatically | |
127 | * does an unmount and remount of the underlying dataset to aid in flushing the | |
128 | * cache. | |
129 | * | |
130 | * The '-f' flag controls the frequency of errors injected, expressed as a | |
0241e491 | 131 | * real number percentage between 0.0001 and 100. The default is 100. |
34dc7c2f BB |
132 | * |
133 | * The this form is responsible for actually injecting the handler into the | |
134 | * framework. It takes the arguments described above, translates them to the | |
135 | * internal tuple using libzpool, and then issues an ioctl() to register the | |
136 | * handler. | |
137 | * | |
138 | * The final form can target a specific bookmark, regardless of whether a | |
139 | * human-readable interface has been designed. It allows developers to specify | |
140 | * a particular block by number. | |
141 | */ | |
142 | ||
143 | #include <errno.h> | |
144 | #include <fcntl.h> | |
145 | #include <stdio.h> | |
146 | #include <stdlib.h> | |
147 | #include <strings.h> | |
148 | #include <unistd.h> | |
149 | ||
150 | #include <sys/fs/zfs.h> | |
151 | #include <sys/mount.h> | |
152 | ||
153 | #include <libzfs.h> | |
154 | ||
155 | #undef verify /* both libzfs.h and zfs_context.h want to define this */ | |
156 | ||
157 | #include "zinject.h" | |
158 | ||
159 | libzfs_handle_t *g_zfs; | |
160 | int zfs_fd; | |
161 | ||
34dc7c2f BB |
162 | static const char *errtable[TYPE_INVAL] = { |
163 | "data", | |
164 | "dnode", | |
165 | "mos", | |
166 | "mosdir", | |
167 | "metaslab", | |
168 | "config", | |
428870ff | 169 | "bpobj", |
34dc7c2f | 170 | "spacemap", |
b128c09f BB |
171 | "errlog", |
172 | "uber", | |
428870ff BB |
173 | "nvlist", |
174 | "pad1", | |
175 | "pad2" | |
34dc7c2f BB |
176 | }; |
177 | ||
178 | static err_type_t | |
179 | name_to_type(const char *arg) | |
180 | { | |
181 | int i; | |
182 | for (i = 0; i < TYPE_INVAL; i++) | |
183 | if (strcmp(errtable[i], arg) == 0) | |
184 | return (i); | |
185 | ||
186 | return (TYPE_INVAL); | |
187 | } | |
188 | ||
189 | static const char * | |
190 | type_to_name(uint64_t type) | |
191 | { | |
192 | switch (type) { | |
193 | case DMU_OT_OBJECT_DIRECTORY: | |
194 | return ("mosdir"); | |
195 | case DMU_OT_OBJECT_ARRAY: | |
196 | return ("metaslab"); | |
197 | case DMU_OT_PACKED_NVLIST: | |
198 | return ("config"); | |
428870ff BB |
199 | case DMU_OT_BPOBJ: |
200 | return ("bpobj"); | |
34dc7c2f BB |
201 | case DMU_OT_SPACE_MAP: |
202 | return ("spacemap"); | |
203 | case DMU_OT_ERROR_LOG: | |
204 | return ("errlog"); | |
205 | default: | |
206 | return ("-"); | |
207 | } | |
208 | } | |
209 | ||
210 | ||
211 | /* | |
212 | * Print usage message. | |
213 | */ | |
214 | void | |
215 | usage(void) | |
216 | { | |
217 | (void) printf( | |
218 | "usage:\n" | |
219 | "\n" | |
220 | "\tzinject\n" | |
221 | "\n" | |
222 | "\t\tList all active injection records.\n" | |
223 | "\n" | |
224 | "\tzinject -c <id|all>\n" | |
225 | "\n" | |
226 | "\t\tClear the particular record (if given a numeric ID), or\n" | |
2627e752 | 227 | "\t\tall records if 'all' is specified.\n" |
34dc7c2f | 228 | "\n" |
428870ff BB |
229 | "\tzinject -p <function name> pool\n" |
230 | "\t\tInject a panic fault at the specified function. Only \n" | |
231 | "\t\tfunctions which call spa_vdev_config_exit(), or \n" | |
232 | "\t\tspa_vdev_exit() will trigger a panic.\n" | |
233 | "\n" | |
234 | "\tzinject -d device [-e errno] [-L <nvlist|uber|pad1|pad2>] [-F]\n" | |
d977122d | 235 | "\t\t[-T <read|write|free|claim|all>] [-f frequency] pool\n\n" |
b128c09f | 236 | "\t\tInject a fault into a particular device or the device's\n" |
428870ff BB |
237 | "\t\tlabel. Label injection can either be 'nvlist', 'uber',\n " |
238 | "\t\t'pad1', or 'pad2'.\n" | |
d977122d DB |
239 | "\t\t'errno' can be 'nxio' (the default), 'io', 'dtl', or\n" |
240 | "\t\t'corrupt' (bit flip).\n" | |
0241e491 DB |
241 | "\t\t'frequency' is a value between 0.0001 and 100.0 that limits\n" |
242 | "\t\tdevice error injection to a percentage of the IOs.\n" | |
34dc7c2f | 243 | "\n" |
cc92e9d0 GW |
244 | "\tzinject -d device -A <degrade|fault> -D <delay secs> pool\n" |
245 | "\t\tPerform a specific action on a particular device.\n" | |
428870ff | 246 | "\n" |
26ef0cc7 TH |
247 | "\tzinject -d device -D latency:lanes pool\n" |
248 | "\n" | |
249 | "\t\tAdd an artificial delay to IO requests on a particular\n" | |
250 | "\t\tdevice, such that the requests take a minimum of 'latency'\n" | |
251 | "\t\tmilliseconds to complete. Each delay has an associated\n" | |
252 | "\t\tnumber of 'lanes' which defines the number of concurrent\n" | |
253 | "\t\tIO requests that can be processed.\n" | |
254 | "\n" | |
255 | "\t\tFor example, with a single lane delay of 10 ms (-D 10:1),\n" | |
256 | "\t\tthe device will only be able to service a single IO request\n" | |
257 | "\t\tat a time with each request taking 10 ms to complete. So,\n" | |
258 | "\t\tif only a single request is submitted every 10 ms, the\n" | |
259 | "\t\taverage latency will be 10 ms; but if more than one request\n" | |
260 | "\t\tis submitted every 10 ms, the average latency will be more\n" | |
261 | "\t\tthan 10 ms.\n" | |
262 | "\n" | |
263 | "\t\tSimilarly, if a delay of 10 ms is specified to have two\n" | |
264 | "\t\tlanes (-D 10:2), then the device will be able to service\n" | |
265 | "\t\ttwo requests at a time, each with a minimum latency of\n" | |
266 | "\t\t10 ms. So, if two requests are submitted every 10 ms, then\n" | |
267 | "\t\tthe average latency will be 10 ms; but if more than two\n" | |
268 | "\t\trequests are submitted every 10 ms, the average latency\n" | |
269 | "\t\twill be more than 10 ms.\n" | |
270 | "\n" | |
271 | "\t\tAlso note, these delays are additive. So two invocations\n" | |
272 | "\t\tof '-D 10:1', is roughly equivalent to a single invocation\n" | |
273 | "\t\tof '-D 10:2'. This also means, one can specify multiple\n" | |
274 | "\t\tlanes with differing target latencies. For example, an\n" | |
275 | "\t\tinvocation of '-D 10:1' followed by '-D 25:2' will\n" | |
276 | "\t\tcreate 3 lanes on the device; one lane with a latency\n" | |
277 | "\t\tof 10 ms and two lanes with a 25 ms latency.\n" | |
278 | "\n" | |
428870ff BB |
279 | "\tzinject -I [-s <seconds> | -g <txgs>] pool\n" |
280 | "\t\tCause the pool to stop writing blocks yet not\n" | |
281 | "\t\treport errors for a duration. Simulates buggy hardware\n" | |
282 | "\t\tthat fails to honor cache flush requests.\n" | |
283 | "\t\tDefault duration is 30 seconds. The machine is panicked\n" | |
284 | "\t\tat the end of the duration.\n" | |
285 | "\n" | |
34dc7c2f BB |
286 | "\tzinject -b objset:object:level:blkid pool\n" |
287 | "\n" | |
288 | "\t\tInject an error into pool 'pool' with the numeric bookmark\n" | |
289 | "\t\tspecified by the remaining tuple. Each number is in\n" | |
4e33ba4c | 290 | "\t\thexadecimal, and only one block can be specified.\n" |
34dc7c2f | 291 | "\n" |
ab7615d9 TC |
292 | "\tzinject [-q] <-t type> [-C dvas] [-e errno] [-l level]\n" |
293 | "\t\t[-r range] [-a] [-m] [-u] [-f freq] <object>\n" | |
34dc7c2f BB |
294 | "\n" |
295 | "\t\tInject an error into the object specified by the '-t' option\n" | |
296 | "\t\tand the object descriptor. The 'object' parameter is\n" | |
2627e752 | 297 | "\t\tinterpreted depending on the '-t' option.\n" |
34dc7c2f BB |
298 | "\n" |
299 | "\t\t-q\tQuiet mode. Only print out the handler number added.\n" | |
be9a5c35 | 300 | "\t\t-e\tInject a specific error. Must be one of 'io',\n" |
ab7615d9 TC |
301 | "\t\t\t'checksum', 'decompress', or 'decrypt'. Default is 'io'.\n" |
302 | "\t\t-C\tInject the given error only into specific DVAs. The\n" | |
303 | "\t\t\tDVAs should be specified as a list of 0-indexed DVAs\n" | |
304 | "\t\t\tseparated by commas (ex. '0,2').\n" | |
34dc7c2f BB |
305 | "\t\t-l\tInject error at a particular block level. Default is " |
306 | "0.\n" | |
307 | "\t\t-m\tAutomatically remount underlying filesystem.\n" | |
308 | "\t\t-r\tInject error over a particular logical range of an\n" | |
309 | "\t\t\tobject. Will be translated to the appropriate blkid\n" | |
310 | "\t\t\trange according to the object's properties.\n" | |
311 | "\t\t-a\tFlush the ARC cache. Can be specified without any\n" | |
312 | "\t\t\tassociated object.\n" | |
313 | "\t\t-u\tUnload the associated pool. Can be specified with only\n" | |
314 | "\t\t\ta pool object.\n" | |
315 | "\t\t-f\tOnly inject errors a fraction of the time. Expressed as\n" | |
0241e491 | 316 | "\t\t\ta percentage between 0.0001 and 100.\n" |
34dc7c2f BB |
317 | "\n" |
318 | "\t-t data\t\tInject an error into the plain file contents of a\n" | |
319 | "\t\t\tfile. The object must be specified as a complete path\n" | |
320 | "\t\t\tto a file on a ZFS filesystem.\n" | |
321 | "\n" | |
322 | "\t-t dnode\tInject an error into the metadnode in the block\n" | |
323 | "\t\t\tcorresponding to the dnode for a file or directory. The\n" | |
324 | "\t\t\t'-r' option is incompatible with this mode. The object\n" | |
325 | "\t\t\tis specified as a complete path to a file or directory\n" | |
326 | "\t\t\ton a ZFS filesystem.\n" | |
327 | "\n" | |
328 | "\t-t <mos>\tInject errors into the MOS for objects of the given\n" | |
428870ff | 329 | "\t\t\ttype. Valid types are: mos, mosdir, config, bpobj,\n" |
34dc7c2f BB |
330 | "\t\t\tspacemap, metaslab, errlog. The only valid <object> is\n" |
331 | "\t\t\tthe poolname.\n"); | |
332 | } | |
333 | ||
334 | static int | |
335 | iter_handlers(int (*func)(int, const char *, zinject_record_t *, void *), | |
336 | void *data) | |
337 | { | |
d3773fda | 338 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
339 | int ret; |
340 | ||
24cf9f4e | 341 | while (zfs_ioctl(g_zfs, ZFS_IOC_INJECT_LIST_NEXT, &zc) == 0) |
34dc7c2f BB |
342 | if ((ret = func((int)zc.zc_guid, zc.zc_name, |
343 | &zc.zc_inject_record, data)) != 0) | |
344 | return (ret); | |
345 | ||
428870ff BB |
346 | if (errno != ENOENT) { |
347 | (void) fprintf(stderr, "Unable to list handlers: %s\n", | |
348 | strerror(errno)); | |
349 | return (-1); | |
350 | } | |
351 | ||
34dc7c2f BB |
352 | return (0); |
353 | } | |
354 | ||
355 | static int | |
356 | print_data_handler(int id, const char *pool, zinject_record_t *record, | |
357 | void *data) | |
358 | { | |
359 | int *count = data; | |
360 | ||
428870ff | 361 | if (record->zi_guid != 0 || record->zi_func[0] != '\0') |
34dc7c2f BB |
362 | return (0); |
363 | ||
364 | if (*count == 0) { | |
ab7615d9 TC |
365 | (void) printf("%3s %-15s %-6s %-6s %-8s %3s %-4s " |
366 | "%-15s\n", "ID", "POOL", "OBJSET", "OBJECT", "TYPE", | |
367 | "LVL", "DVAs", "RANGE"); | |
34dc7c2f | 368 | (void) printf("--- --------------- ------ " |
ab7615d9 | 369 | "------ -------- --- ---- ---------------\n"); |
34dc7c2f BB |
370 | } |
371 | ||
372 | *count += 1; | |
373 | ||
ab7615d9 TC |
374 | (void) printf("%3d %-15s %-6llu %-6llu %-8s %-3d 0x%02x ", |
375 | id, pool, (u_longlong_t)record->zi_objset, | |
376 | (u_longlong_t)record->zi_object, type_to_name(record->zi_type), | |
377 | record->zi_level, record->zi_dvas); | |
378 | ||
34dc7c2f BB |
379 | |
380 | if (record->zi_start == 0 && | |
381 | record->zi_end == -1ULL) | |
382 | (void) printf("all\n"); | |
383 | else | |
384 | (void) printf("[%llu, %llu]\n", (u_longlong_t)record->zi_start, | |
385 | (u_longlong_t)record->zi_end); | |
386 | ||
387 | return (0); | |
388 | } | |
389 | ||
390 | static int | |
391 | print_device_handler(int id, const char *pool, zinject_record_t *record, | |
392 | void *data) | |
393 | { | |
394 | int *count = data; | |
395 | ||
428870ff | 396 | if (record->zi_guid == 0 || record->zi_func[0] != '\0') |
34dc7c2f BB |
397 | return (0); |
398 | ||
26ef0cc7 TH |
399 | if (record->zi_cmd == ZINJECT_DELAY_IO) |
400 | return (0); | |
401 | ||
34dc7c2f BB |
402 | if (*count == 0) { |
403 | (void) printf("%3s %-15s %s\n", "ID", "POOL", "GUID"); | |
404 | (void) printf("--- --------------- ----------------\n"); | |
405 | } | |
406 | ||
407 | *count += 1; | |
408 | ||
409 | (void) printf("%3d %-15s %llx\n", id, pool, | |
410 | (u_longlong_t)record->zi_guid); | |
411 | ||
412 | return (0); | |
413 | } | |
414 | ||
26ef0cc7 TH |
415 | static int |
416 | print_delay_handler(int id, const char *pool, zinject_record_t *record, | |
417 | void *data) | |
418 | { | |
419 | int *count = data; | |
420 | ||
421 | if (record->zi_guid == 0 || record->zi_func[0] != '\0') | |
422 | return (0); | |
423 | ||
424 | if (record->zi_cmd != ZINJECT_DELAY_IO) | |
425 | return (0); | |
426 | ||
427 | if (*count == 0) { | |
428 | (void) printf("%3s %-15s %-15s %-15s %s\n", | |
429 | "ID", "POOL", "DELAY (ms)", "LANES", "GUID"); | |
430 | (void) printf("--- --------------- --------------- " | |
431 | "--------------- ----------------\n"); | |
432 | } | |
433 | ||
434 | *count += 1; | |
435 | ||
436 | (void) printf("%3d %-15s %-15llu %-15llu %llx\n", id, pool, | |
437 | (u_longlong_t)NSEC2MSEC(record->zi_timer), | |
438 | (u_longlong_t)record->zi_nlanes, | |
439 | (u_longlong_t)record->zi_guid); | |
440 | ||
441 | return (0); | |
442 | } | |
443 | ||
428870ff BB |
444 | static int |
445 | print_panic_handler(int id, const char *pool, zinject_record_t *record, | |
446 | void *data) | |
447 | { | |
448 | int *count = data; | |
449 | ||
450 | if (record->zi_func[0] == '\0') | |
451 | return (0); | |
452 | ||
453 | if (*count == 0) { | |
454 | (void) printf("%3s %-15s %s\n", "ID", "POOL", "FUNCTION"); | |
455 | (void) printf("--- --------------- ----------------\n"); | |
456 | } | |
457 | ||
458 | *count += 1; | |
459 | ||
460 | (void) printf("%3d %-15s %s\n", id, pool, record->zi_func); | |
461 | ||
462 | return (0); | |
463 | } | |
464 | ||
34dc7c2f BB |
465 | /* |
466 | * Print all registered error handlers. Returns the number of handlers | |
467 | * registered. | |
468 | */ | |
469 | static int | |
470 | print_all_handlers(void) | |
471 | { | |
572e2857 | 472 | int count = 0, total = 0; |
34dc7c2f BB |
473 | |
474 | (void) iter_handlers(print_device_handler, &count); | |
572e2857 BB |
475 | if (count > 0) { |
476 | total += count; | |
477 | (void) printf("\n"); | |
478 | count = 0; | |
479 | } | |
480 | ||
26ef0cc7 TH |
481 | (void) iter_handlers(print_delay_handler, &count); |
482 | if (count > 0) { | |
483 | total += count; | |
484 | (void) printf("\n"); | |
485 | count = 0; | |
486 | } | |
487 | ||
34dc7c2f | 488 | (void) iter_handlers(print_data_handler, &count); |
572e2857 BB |
489 | if (count > 0) { |
490 | total += count; | |
491 | (void) printf("\n"); | |
492 | count = 0; | |
493 | } | |
494 | ||
428870ff | 495 | (void) iter_handlers(print_panic_handler, &count); |
34dc7c2f | 496 | |
572e2857 | 497 | return (count + total); |
34dc7c2f BB |
498 | } |
499 | ||
34dc7c2f BB |
500 | static int |
501 | cancel_one_handler(int id, const char *pool, zinject_record_t *record, | |
502 | void *data) | |
503 | { | |
964e6a49 | 504 | (void) pool, (void) record, (void) data; |
d3773fda | 505 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
506 | |
507 | zc.zc_guid = (uint64_t)id; | |
508 | ||
24cf9f4e | 509 | if (zfs_ioctl(g_zfs, ZFS_IOC_CLEAR_FAULT, &zc) != 0) { |
34dc7c2f BB |
510 | (void) fprintf(stderr, "failed to remove handler %d: %s\n", |
511 | id, strerror(errno)); | |
512 | return (1); | |
513 | } | |
514 | ||
515 | return (0); | |
516 | } | |
517 | ||
518 | /* | |
519 | * Remove all fault injection handlers. | |
520 | */ | |
521 | static int | |
522 | cancel_all_handlers(void) | |
523 | { | |
524 | int ret = iter_handlers(cancel_one_handler, NULL); | |
525 | ||
428870ff BB |
526 | if (ret == 0) |
527 | (void) printf("removed all registered handlers\n"); | |
34dc7c2f BB |
528 | |
529 | return (ret); | |
530 | } | |
531 | ||
532 | /* | |
533 | * Remove a specific fault injection handler. | |
534 | */ | |
535 | static int | |
536 | cancel_handler(int id) | |
537 | { | |
d3773fda | 538 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
539 | |
540 | zc.zc_guid = (uint64_t)id; | |
541 | ||
24cf9f4e | 542 | if (zfs_ioctl(g_zfs, ZFS_IOC_CLEAR_FAULT, &zc) != 0) { |
34dc7c2f BB |
543 | (void) fprintf(stderr, "failed to remove handler %d: %s\n", |
544 | id, strerror(errno)); | |
545 | return (1); | |
546 | } | |
547 | ||
548 | (void) printf("removed handler %d\n", id); | |
549 | ||
550 | return (0); | |
551 | } | |
552 | ||
553 | /* | |
554 | * Register a new fault injection handler. | |
555 | */ | |
556 | static int | |
557 | register_handler(const char *pool, int flags, zinject_record_t *record, | |
558 | int quiet) | |
559 | { | |
d3773fda | 560 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 561 | |
0b78aeae | 562 | (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); |
34dc7c2f BB |
563 | zc.zc_inject_record = *record; |
564 | zc.zc_guid = flags; | |
565 | ||
24cf9f4e | 566 | if (zfs_ioctl(g_zfs, ZFS_IOC_INJECT_FAULT, &zc) != 0) { |
34dc7c2f | 567 | (void) fprintf(stderr, "failed to add handler: %s\n", |
e89f1295 | 568 | errno == EDOM ? "block level exceeds max level of object" : |
34dc7c2f BB |
569 | strerror(errno)); |
570 | return (1); | |
571 | } | |
572 | ||
573 | if (flags & ZINJECT_NULL) | |
574 | return (0); | |
575 | ||
576 | if (quiet) { | |
577 | (void) printf("%llu\n", (u_longlong_t)zc.zc_guid); | |
578 | } else { | |
579 | (void) printf("Added handler %llu with the following " | |
580 | "properties:\n", (u_longlong_t)zc.zc_guid); | |
581 | (void) printf(" pool: %s\n", pool); | |
582 | if (record->zi_guid) { | |
583 | (void) printf(" vdev: %llx\n", | |
584 | (u_longlong_t)record->zi_guid); | |
428870ff BB |
585 | } else if (record->zi_func[0] != '\0') { |
586 | (void) printf(" panic function: %s\n", | |
587 | record->zi_func); | |
588 | } else if (record->zi_duration > 0) { | |
589 | (void) printf(" time: %lld seconds\n", | |
590 | (u_longlong_t)record->zi_duration); | |
591 | } else if (record->zi_duration < 0) { | |
592 | (void) printf(" txgs: %lld \n", | |
593 | (u_longlong_t)-record->zi_duration); | |
34dc7c2f BB |
594 | } else { |
595 | (void) printf("objset: %llu\n", | |
596 | (u_longlong_t)record->zi_objset); | |
597 | (void) printf("object: %llu\n", | |
598 | (u_longlong_t)record->zi_object); | |
599 | (void) printf(" type: %llu\n", | |
600 | (u_longlong_t)record->zi_type); | |
601 | (void) printf(" level: %d\n", record->zi_level); | |
602 | if (record->zi_start == 0 && | |
603 | record->zi_end == -1ULL) | |
604 | (void) printf(" range: all\n"); | |
605 | else | |
606 | (void) printf(" range: [%llu, %llu)\n", | |
607 | (u_longlong_t)record->zi_start, | |
608 | (u_longlong_t)record->zi_end); | |
ab7615d9 | 609 | (void) printf(" dvas: 0x%x\n", record->zi_dvas); |
34dc7c2f BB |
610 | } |
611 | } | |
612 | ||
613 | return (0); | |
614 | } | |
615 | ||
65c7cc49 | 616 | static int |
428870ff BB |
617 | perform_action(const char *pool, zinject_record_t *record, int cmd) |
618 | { | |
d3773fda | 619 | zfs_cmd_t zc = {"\0"}; |
428870ff BB |
620 | |
621 | ASSERT(cmd == VDEV_STATE_DEGRADED || cmd == VDEV_STATE_FAULTED); | |
622 | (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); | |
623 | zc.zc_guid = record->zi_guid; | |
624 | zc.zc_cookie = cmd; | |
625 | ||
24cf9f4e | 626 | if (zfs_ioctl(g_zfs, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) |
428870ff BB |
627 | return (0); |
628 | ||
629 | return (1); | |
630 | } | |
631 | ||
26ef0cc7 TH |
632 | static int |
633 | parse_delay(char *str, uint64_t *delay, uint64_t *nlanes) | |
634 | { | |
635 | unsigned long scan_delay; | |
636 | unsigned long scan_nlanes; | |
637 | ||
638 | if (sscanf(str, "%lu:%lu", &scan_delay, &scan_nlanes) != 2) | |
639 | return (1); | |
640 | ||
641 | /* | |
642 | * We explicitly disallow a delay of zero here, because we key | |
643 | * off this value being non-zero in translate_device(), to | |
644 | * determine if the fault is a ZINJECT_DELAY_IO fault or not. | |
645 | */ | |
646 | if (scan_delay == 0) | |
647 | return (1); | |
648 | ||
649 | /* | |
650 | * The units for the CLI delay parameter is milliseconds, but | |
651 | * the data passed to the kernel is interpreted as nanoseconds. | |
652 | * Thus we scale the milliseconds to nanoseconds here, and this | |
653 | * nanosecond value is used to pass the delay to the kernel. | |
654 | */ | |
655 | *delay = MSEC2NSEC(scan_delay); | |
656 | *nlanes = scan_nlanes; | |
657 | ||
658 | return (0); | |
659 | } | |
660 | ||
0241e491 DB |
661 | static int |
662 | parse_frequency(const char *str, uint32_t *percent) | |
663 | { | |
664 | double val; | |
665 | char *post; | |
666 | ||
667 | val = strtod(str, &post); | |
668 | if (post == NULL || *post != '\0') | |
669 | return (EINVAL); | |
670 | ||
671 | /* valid range is [0.0001, 100.0] */ | |
672 | val /= 100.0f; | |
673 | if (val < 0.000001f || val > 1.0f) | |
674 | return (ERANGE); | |
675 | ||
676 | /* convert to an integer for use by kernel */ | |
677 | *percent = ((uint32_t)(val * ZI_PERCENTAGE_MAX)); | |
678 | ||
679 | return (0); | |
680 | } | |
681 | ||
ab7615d9 TC |
682 | /* |
683 | * This function converts a string specifier for DVAs into a bit mask. | |
684 | * The dva's provided by the user should be 0 indexed and separated by | |
685 | * a comma. For example: | |
686 | * "1" -> 0b0010 (0x2) | |
687 | * "0,1" -> 0b0011 (0x3) | |
688 | * "0,1,2" -> 0b0111 (0x7) | |
689 | */ | |
690 | static int | |
691 | parse_dvas(const char *str, uint32_t *dvas_out) | |
692 | { | |
693 | const char *c = str; | |
694 | uint32_t mask = 0; | |
695 | boolean_t need_delim = B_FALSE; | |
696 | ||
697 | /* max string length is 5 ("0,1,2") */ | |
698 | if (strlen(str) > 5 || strlen(str) == 0) | |
699 | return (EINVAL); | |
700 | ||
701 | while (*c != '\0') { | |
702 | switch (*c) { | |
703 | case '0': | |
704 | case '1': | |
705 | case '2': | |
706 | /* check for pipe between DVAs */ | |
707 | if (need_delim) | |
708 | return (EINVAL); | |
709 | ||
710 | /* check if this DVA has been set already */ | |
711 | if (mask & (1 << ((*c) - '0'))) | |
712 | return (EINVAL); | |
713 | ||
714 | mask |= (1 << ((*c) - '0')); | |
715 | need_delim = B_TRUE; | |
716 | break; | |
717 | case ',': | |
718 | need_delim = B_FALSE; | |
719 | break; | |
720 | default: | |
721 | /* check for invalid character */ | |
722 | return (EINVAL); | |
723 | } | |
724 | c++; | |
725 | } | |
726 | ||
727 | /* check for dangling delimiter */ | |
728 | if (!need_delim) | |
729 | return (EINVAL); | |
730 | ||
731 | *dvas_out = mask; | |
732 | return (0); | |
733 | } | |
734 | ||
34dc7c2f BB |
735 | int |
736 | main(int argc, char **argv) | |
737 | { | |
738 | int c; | |
739 | char *range = NULL; | |
740 | char *cancel = NULL; | |
741 | char *end; | |
742 | char *raw = NULL; | |
743 | char *device = NULL; | |
744 | int level = 0; | |
745 | int quiet = 0; | |
746 | int error = 0; | |
747 | int domount = 0; | |
428870ff BB |
748 | int io_type = ZIO_TYPES; |
749 | int action = VDEV_STATE_UNKNOWN; | |
34dc7c2f | 750 | err_type_t type = TYPE_INVAL; |
b128c09f | 751 | err_type_t label = TYPE_INVAL; |
34dc7c2f | 752 | zinject_record_t record = { 0 }; |
a64f903b GN |
753 | char pool[MAXNAMELEN] = ""; |
754 | char dataset[MAXNAMELEN] = ""; | |
149e873a | 755 | zfs_handle_t *zhp = NULL; |
428870ff BB |
756 | int nowrites = 0; |
757 | int dur_txg = 0; | |
758 | int dur_secs = 0; | |
34dc7c2f BB |
759 | int ret; |
760 | int flags = 0; | |
ab7615d9 | 761 | uint32_t dvas = 0; |
34dc7c2f | 762 | |
65037d9b | 763 | if ((g_zfs = libzfs_init()) == NULL) { |
afc8f0a6 | 764 | (void) fprintf(stderr, "%s\n", libzfs_error_init(errno)); |
937210a5 | 765 | return (1); |
65037d9b | 766 | } |
937210a5 BB |
767 | |
768 | libzfs_print_on_error(g_zfs, B_TRUE); | |
769 | ||
770 | if ((zfs_fd = open(ZFS_DEV, O_RDWR)) < 0) { | |
771 | (void) fprintf(stderr, "failed to open ZFS device\n"); | |
5df39c1e | 772 | libzfs_fini(g_zfs); |
937210a5 BB |
773 | return (1); |
774 | } | |
775 | ||
34dc7c2f BB |
776 | if (argc == 1) { |
777 | /* | |
778 | * No arguments. Print the available handlers. If there are no | |
779 | * available handlers, direct the user to '-h' for help | |
780 | * information. | |
781 | */ | |
782 | if (print_all_handlers() == 0) { | |
783 | (void) printf("No handlers registered.\n"); | |
784 | (void) printf("Run 'zinject -h' for usage " | |
785 | "information.\n"); | |
786 | } | |
5df39c1e | 787 | libzfs_fini(g_zfs); |
34dc7c2f BB |
788 | return (0); |
789 | } | |
790 | ||
428870ff | 791 | while ((c = getopt(argc, argv, |
ab7615d9 | 792 | ":aA:b:C:d:D:f:Fg:qhIc:t:T:l:mr:s:e:uL:p:")) != -1) { |
34dc7c2f BB |
793 | switch (c) { |
794 | case 'a': | |
795 | flags |= ZINJECT_FLUSH_ARC; | |
796 | break; | |
428870ff BB |
797 | case 'A': |
798 | if (strcasecmp(optarg, "degrade") == 0) { | |
799 | action = VDEV_STATE_DEGRADED; | |
800 | } else if (strcasecmp(optarg, "fault") == 0) { | |
801 | action = VDEV_STATE_FAULTED; | |
802 | } else { | |
803 | (void) fprintf(stderr, "invalid action '%s': " | |
804 | "must be 'degrade' or 'fault'\n", optarg); | |
805 | usage(); | |
5df39c1e | 806 | libzfs_fini(g_zfs); |
428870ff BB |
807 | return (1); |
808 | } | |
809 | break; | |
34dc7c2f BB |
810 | case 'b': |
811 | raw = optarg; | |
812 | break; | |
813 | case 'c': | |
814 | cancel = optarg; | |
815 | break; | |
ab7615d9 TC |
816 | case 'C': |
817 | ret = parse_dvas(optarg, &dvas); | |
818 | if (ret != 0) { | |
819 | (void) fprintf(stderr, "invalid DVA list '%s': " | |
820 | "DVAs should be 0 indexed and separated by " | |
821 | "commas.\n", optarg); | |
822 | usage(); | |
823 | libzfs_fini(g_zfs); | |
824 | return (1); | |
825 | } | |
826 | break; | |
34dc7c2f BB |
827 | case 'd': |
828 | device = optarg; | |
829 | break; | |
cc92e9d0 GW |
830 | case 'D': |
831 | errno = 0; | |
26ef0cc7 TH |
832 | ret = parse_delay(optarg, &record.zi_timer, |
833 | &record.zi_nlanes); | |
834 | if (ret != 0) { | |
835 | ||
cc92e9d0 GW |
836 | (void) fprintf(stderr, "invalid i/o delay " |
837 | "value: '%s'\n", optarg); | |
838 | usage(); | |
5df39c1e | 839 | libzfs_fini(g_zfs); |
cc92e9d0 GW |
840 | return (1); |
841 | } | |
842 | break; | |
34dc7c2f BB |
843 | case 'e': |
844 | if (strcasecmp(optarg, "io") == 0) { | |
845 | error = EIO; | |
846 | } else if (strcasecmp(optarg, "checksum") == 0) { | |
847 | error = ECKSUM; | |
c3bd3fb4 TC |
848 | } else if (strcasecmp(optarg, "decompress") == 0) { |
849 | error = EINVAL; | |
be9a5c35 TC |
850 | } else if (strcasecmp(optarg, "decrypt") == 0) { |
851 | error = EACCES; | |
34dc7c2f BB |
852 | } else if (strcasecmp(optarg, "nxio") == 0) { |
853 | error = ENXIO; | |
572e2857 BB |
854 | } else if (strcasecmp(optarg, "dtl") == 0) { |
855 | error = ECHILD; | |
d977122d DB |
856 | } else if (strcasecmp(optarg, "corrupt") == 0) { |
857 | error = EILSEQ; | |
34dc7c2f BB |
858 | } else { |
859 | (void) fprintf(stderr, "invalid error type " | |
860 | "'%s': must be 'io', 'checksum' or " | |
861 | "'nxio'\n", optarg); | |
862 | usage(); | |
5df39c1e | 863 | libzfs_fini(g_zfs); |
34dc7c2f BB |
864 | return (1); |
865 | } | |
866 | break; | |
867 | case 'f': | |
0241e491 DB |
868 | ret = parse_frequency(optarg, &record.zi_freq); |
869 | if (ret != 0) { | |
870 | (void) fprintf(stderr, "%sfrequency value must " | |
871 | "be in the range [0.0001, 100.0]\n", | |
872 | ret == EINVAL ? "invalid value: " : | |
873 | ret == ERANGE ? "out of range: " : ""); | |
5df39c1e | 874 | libzfs_fini(g_zfs); |
34dc7c2f BB |
875 | return (1); |
876 | } | |
877 | break; | |
9babb374 BB |
878 | case 'F': |
879 | record.zi_failfast = B_TRUE; | |
880 | break; | |
428870ff BB |
881 | case 'g': |
882 | dur_txg = 1; | |
883 | record.zi_duration = (int)strtol(optarg, &end, 10); | |
884 | if (record.zi_duration <= 0 || *end != '\0') { | |
885 | (void) fprintf(stderr, "invalid duration '%s': " | |
886 | "must be a positive integer\n", optarg); | |
887 | usage(); | |
5df39c1e | 888 | libzfs_fini(g_zfs); |
428870ff BB |
889 | return (1); |
890 | } | |
891 | /* store duration of txgs as its negative */ | |
892 | record.zi_duration *= -1; | |
893 | break; | |
34dc7c2f BB |
894 | case 'h': |
895 | usage(); | |
5df39c1e | 896 | libzfs_fini(g_zfs); |
34dc7c2f | 897 | return (0); |
428870ff BB |
898 | case 'I': |
899 | /* default duration, if one hasn't yet been defined */ | |
900 | nowrites = 1; | |
901 | if (dur_secs == 0 && dur_txg == 0) | |
902 | record.zi_duration = 30; | |
903 | break; | |
34dc7c2f BB |
904 | case 'l': |
905 | level = (int)strtol(optarg, &end, 10); | |
906 | if (*end != '\0') { | |
907 | (void) fprintf(stderr, "invalid level '%s': " | |
908 | "must be an integer\n", optarg); | |
909 | usage(); | |
5df39c1e | 910 | libzfs_fini(g_zfs); |
34dc7c2f BB |
911 | return (1); |
912 | } | |
913 | break; | |
914 | case 'm': | |
915 | domount = 1; | |
916 | break; | |
428870ff BB |
917 | case 'p': |
918 | (void) strlcpy(record.zi_func, optarg, | |
919 | sizeof (record.zi_func)); | |
cc92e9d0 | 920 | record.zi_cmd = ZINJECT_PANIC; |
428870ff | 921 | break; |
34dc7c2f BB |
922 | case 'q': |
923 | quiet = 1; | |
924 | break; | |
925 | case 'r': | |
926 | range = optarg; | |
e89f1295 | 927 | flags |= ZINJECT_CALC_RANGE; |
34dc7c2f | 928 | break; |
428870ff BB |
929 | case 's': |
930 | dur_secs = 1; | |
931 | record.zi_duration = (int)strtol(optarg, &end, 10); | |
932 | if (record.zi_duration <= 0 || *end != '\0') { | |
933 | (void) fprintf(stderr, "invalid duration '%s': " | |
934 | "must be a positive integer\n", optarg); | |
935 | usage(); | |
5df39c1e | 936 | libzfs_fini(g_zfs); |
428870ff BB |
937 | return (1); |
938 | } | |
939 | break; | |
940 | case 'T': | |
941 | if (strcasecmp(optarg, "read") == 0) { | |
942 | io_type = ZIO_TYPE_READ; | |
943 | } else if (strcasecmp(optarg, "write") == 0) { | |
944 | io_type = ZIO_TYPE_WRITE; | |
945 | } else if (strcasecmp(optarg, "free") == 0) { | |
946 | io_type = ZIO_TYPE_FREE; | |
947 | } else if (strcasecmp(optarg, "claim") == 0) { | |
948 | io_type = ZIO_TYPE_CLAIM; | |
949 | } else if (strcasecmp(optarg, "all") == 0) { | |
950 | io_type = ZIO_TYPES; | |
951 | } else { | |
952 | (void) fprintf(stderr, "invalid I/O type " | |
953 | "'%s': must be 'read', 'write', 'free', " | |
954 | "'claim' or 'all'\n", optarg); | |
955 | usage(); | |
5df39c1e | 956 | libzfs_fini(g_zfs); |
428870ff BB |
957 | return (1); |
958 | } | |
959 | break; | |
34dc7c2f | 960 | case 't': |
b128c09f BB |
961 | if ((type = name_to_type(optarg)) == TYPE_INVAL && |
962 | !MOS_TYPE(type)) { | |
34dc7c2f BB |
963 | (void) fprintf(stderr, "invalid type '%s'\n", |
964 | optarg); | |
965 | usage(); | |
5df39c1e | 966 | libzfs_fini(g_zfs); |
34dc7c2f BB |
967 | return (1); |
968 | } | |
969 | break; | |
970 | case 'u': | |
971 | flags |= ZINJECT_UNLOAD_SPA; | |
972 | break; | |
b128c09f BB |
973 | case 'L': |
974 | if ((label = name_to_type(optarg)) == TYPE_INVAL && | |
975 | !LABEL_TYPE(type)) { | |
976 | (void) fprintf(stderr, "invalid label type " | |
977 | "'%s'\n", optarg); | |
978 | usage(); | |
5df39c1e | 979 | libzfs_fini(g_zfs); |
b128c09f BB |
980 | return (1); |
981 | } | |
982 | break; | |
34dc7c2f BB |
983 | case ':': |
984 | (void) fprintf(stderr, "option -%c requires an " | |
985 | "operand\n", optopt); | |
986 | usage(); | |
5df39c1e | 987 | libzfs_fini(g_zfs); |
34dc7c2f BB |
988 | return (1); |
989 | case '?': | |
990 | (void) fprintf(stderr, "invalid option '%c'\n", | |
991 | optopt); | |
992 | usage(); | |
5df39c1e | 993 | libzfs_fini(g_zfs); |
34dc7c2f BB |
994 | return (2); |
995 | } | |
996 | } | |
997 | ||
998 | argc -= optind; | |
999 | argv += optind; | |
1000 | ||
cc92e9d0 GW |
1001 | if (record.zi_duration != 0) |
1002 | record.zi_cmd = ZINJECT_IGNORED_WRITES; | |
1003 | ||
34dc7c2f BB |
1004 | if (cancel != NULL) { |
1005 | /* | |
1006 | * '-c' is invalid with any other options. | |
1007 | */ | |
1008 | if (raw != NULL || range != NULL || type != TYPE_INVAL || | |
0241e491 | 1009 | level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED || |
ab7615d9 | 1010 | record.zi_freq > 0 || dvas != 0) { |
34dc7c2f BB |
1011 | (void) fprintf(stderr, "cancel (-c) incompatible with " |
1012 | "any other options\n"); | |
1013 | usage(); | |
5df39c1e | 1014 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1015 | return (2); |
1016 | } | |
1017 | if (argc != 0) { | |
1018 | (void) fprintf(stderr, "extraneous argument to '-c'\n"); | |
1019 | usage(); | |
5df39c1e | 1020 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1021 | return (2); |
1022 | } | |
1023 | ||
1024 | if (strcmp(cancel, "all") == 0) { | |
1025 | return (cancel_all_handlers()); | |
1026 | } else { | |
1027 | int id = (int)strtol(cancel, &end, 10); | |
1028 | if (*end != '\0') { | |
1029 | (void) fprintf(stderr, "invalid handle id '%s':" | |
1030 | " must be an integer or 'all'\n", cancel); | |
1031 | usage(); | |
5df39c1e | 1032 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1033 | return (1); |
1034 | } | |
1035 | return (cancel_handler(id)); | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | if (device != NULL) { | |
1040 | /* | |
1041 | * Device (-d) injection uses a completely different mechanism | |
1042 | * for doing injection, so handle it separately here. | |
1043 | */ | |
1044 | if (raw != NULL || range != NULL || type != TYPE_INVAL || | |
ab7615d9 TC |
1045 | level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED || |
1046 | dvas != 0) { | |
34dc7c2f BB |
1047 | (void) fprintf(stderr, "device (-d) incompatible with " |
1048 | "data error injection\n"); | |
1049 | usage(); | |
5df39c1e | 1050 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1051 | return (2); |
1052 | } | |
1053 | ||
1054 | if (argc != 1) { | |
1055 | (void) fprintf(stderr, "device (-d) injection requires " | |
1056 | "a single pool name\n"); | |
1057 | usage(); | |
5df39c1e | 1058 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1059 | return (2); |
1060 | } | |
1061 | ||
5df39c1e | 1062 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1063 | dataset[0] = '\0'; |
1064 | ||
1065 | if (error == ECKSUM) { | |
1066 | (void) fprintf(stderr, "device error type must be " | |
d977122d DB |
1067 | "'io', 'nxio' or 'corrupt'\n"); |
1068 | libzfs_fini(g_zfs); | |
1069 | return (1); | |
1070 | } | |
1071 | ||
1072 | if (error == EILSEQ && | |
1073 | (record.zi_freq == 0 || io_type != ZIO_TYPE_READ)) { | |
1074 | (void) fprintf(stderr, "device corrupt errors require " | |
1075 | "io type read and a frequency value\n"); | |
5df39c1e | 1076 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1077 | return (1); |
1078 | } | |
1079 | ||
428870ff | 1080 | record.zi_iotype = io_type; |
5df39c1e | 1081 | if (translate_device(pool, device, label, &record) != 0) { |
1082 | libzfs_fini(g_zfs); | |
34dc7c2f | 1083 | return (1); |
5df39c1e | 1084 | } |
34dc7c2f BB |
1085 | if (!error) |
1086 | error = ENXIO; | |
428870ff BB |
1087 | |
1088 | if (action != VDEV_STATE_UNKNOWN) | |
1089 | return (perform_action(pool, &record, action)); | |
1090 | ||
34dc7c2f | 1091 | } else if (raw != NULL) { |
428870ff | 1092 | if (range != NULL || type != TYPE_INVAL || level != 0 || |
0241e491 | 1093 | record.zi_cmd != ZINJECT_UNINITIALIZED || |
ab7615d9 | 1094 | record.zi_freq > 0 || dvas != 0) { |
34dc7c2f BB |
1095 | (void) fprintf(stderr, "raw (-b) format with " |
1096 | "any other options\n"); | |
1097 | usage(); | |
5df39c1e | 1098 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1099 | return (2); |
1100 | } | |
1101 | ||
1102 | if (argc != 1) { | |
1103 | (void) fprintf(stderr, "raw (-b) format expects a " | |
1104 | "single pool name\n"); | |
1105 | usage(); | |
5df39c1e | 1106 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1107 | return (2); |
1108 | } | |
1109 | ||
5df39c1e | 1110 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1111 | dataset[0] = '\0'; |
1112 | ||
1113 | if (error == ENXIO) { | |
1114 | (void) fprintf(stderr, "data error type must be " | |
1115 | "'checksum' or 'io'\n"); | |
5df39c1e | 1116 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1117 | return (1); |
1118 | } | |
1119 | ||
cc92e9d0 | 1120 | record.zi_cmd = ZINJECT_DATA_FAULT; |
5df39c1e | 1121 | if (translate_raw(raw, &record) != 0) { |
1122 | libzfs_fini(g_zfs); | |
34dc7c2f | 1123 | return (1); |
5df39c1e | 1124 | } |
34dc7c2f BB |
1125 | if (!error) |
1126 | error = EIO; | |
cc92e9d0 | 1127 | } else if (record.zi_cmd == ZINJECT_PANIC) { |
428870ff | 1128 | if (raw != NULL || range != NULL || type != TYPE_INVAL || |
ab7615d9 TC |
1129 | level != 0 || device != NULL || record.zi_freq > 0 || |
1130 | dvas != 0) { | |
428870ff BB |
1131 | (void) fprintf(stderr, "panic (-p) incompatible with " |
1132 | "other options\n"); | |
1133 | usage(); | |
5df39c1e | 1134 | libzfs_fini(g_zfs); |
428870ff BB |
1135 | return (2); |
1136 | } | |
1137 | ||
1138 | if (argc < 1 || argc > 2) { | |
1139 | (void) fprintf(stderr, "panic (-p) injection requires " | |
1140 | "a single pool name and an optional id\n"); | |
1141 | usage(); | |
5df39c1e | 1142 | libzfs_fini(g_zfs); |
428870ff BB |
1143 | return (2); |
1144 | } | |
1145 | ||
5df39c1e | 1146 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
428870ff BB |
1147 | if (argv[1] != NULL) |
1148 | record.zi_type = atoi(argv[1]); | |
1149 | dataset[0] = '\0'; | |
cc92e9d0 | 1150 | } else if (record.zi_cmd == ZINJECT_IGNORED_WRITES) { |
ab7615d9 TC |
1151 | if (raw != NULL || range != NULL || type != TYPE_INVAL || |
1152 | level != 0 || record.zi_freq > 0 || dvas != 0) { | |
1153 | (void) fprintf(stderr, "hardware failure (-I) " | |
1154 | "incompatible with other options\n"); | |
1155 | usage(); | |
1156 | libzfs_fini(g_zfs); | |
1157 | return (2); | |
1158 | } | |
1159 | ||
428870ff BB |
1160 | if (nowrites == 0) { |
1161 | (void) fprintf(stderr, "-s or -g meaningless " | |
1162 | "without -I (ignore writes)\n"); | |
1163 | usage(); | |
5df39c1e | 1164 | libzfs_fini(g_zfs); |
428870ff BB |
1165 | return (2); |
1166 | } else if (dur_secs && dur_txg) { | |
1167 | (void) fprintf(stderr, "choose a duration either " | |
1168 | "in seconds (-s) or a number of txgs (-g) " | |
1169 | "but not both\n"); | |
1170 | usage(); | |
5df39c1e | 1171 | libzfs_fini(g_zfs); |
428870ff BB |
1172 | return (2); |
1173 | } else if (argc != 1) { | |
1174 | (void) fprintf(stderr, "ignore writes (-I) " | |
1175 | "injection requires a single pool name\n"); | |
1176 | usage(); | |
5df39c1e | 1177 | libzfs_fini(g_zfs); |
428870ff BB |
1178 | return (2); |
1179 | } | |
1180 | ||
5df39c1e | 1181 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
428870ff | 1182 | dataset[0] = '\0'; |
34dc7c2f BB |
1183 | } else if (type == TYPE_INVAL) { |
1184 | if (flags == 0) { | |
1185 | (void) fprintf(stderr, "at least one of '-b', '-d', " | |
428870ff BB |
1186 | "'-t', '-a', '-p', '-I' or '-u' " |
1187 | "must be specified\n"); | |
34dc7c2f | 1188 | usage(); |
5df39c1e | 1189 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1190 | return (2); |
1191 | } | |
1192 | ||
1193 | if (argc == 1 && (flags & ZINJECT_UNLOAD_SPA)) { | |
5df39c1e | 1194 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1195 | dataset[0] = '\0'; |
1196 | } else if (argc != 0) { | |
1197 | (void) fprintf(stderr, "extraneous argument for " | |
1198 | "'-f'\n"); | |
1199 | usage(); | |
5df39c1e | 1200 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1201 | return (2); |
1202 | } | |
1203 | ||
1204 | flags |= ZINJECT_NULL; | |
1205 | } else { | |
1206 | if (argc != 1) { | |
1207 | (void) fprintf(stderr, "missing object\n"); | |
1208 | usage(); | |
5df39c1e | 1209 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1210 | return (2); |
1211 | } | |
1212 | ||
d977122d | 1213 | if (error == ENXIO || error == EILSEQ) { |
34dc7c2f BB |
1214 | (void) fprintf(stderr, "data error type must be " |
1215 | "'checksum' or 'io'\n"); | |
5df39c1e | 1216 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1217 | return (1); |
1218 | } | |
1219 | ||
ab7615d9 TC |
1220 | if (dvas != 0) { |
1221 | if (error == EACCES || error == EINVAL) { | |
7dcd3188 | 1222 | (void) fprintf(stderr, "the '-C' option may " |
ab7615d9 TC |
1223 | "not be used with logical data errors " |
1224 | "'decrypt' and 'decompress'\n"); | |
1225 | libzfs_fini(g_zfs); | |
1226 | return (1); | |
1227 | } | |
1228 | ||
1229 | record.zi_dvas = dvas; | |
1230 | } | |
1231 | ||
be9a5c35 TC |
1232 | if (error == EACCES) { |
1233 | if (type != TYPE_DATA) { | |
1234 | (void) fprintf(stderr, "decryption errors " | |
1235 | "may only be injected for 'data' types\n"); | |
1236 | libzfs_fini(g_zfs); | |
1237 | return (1); | |
1238 | } | |
1239 | ||
1240 | record.zi_cmd = ZINJECT_DECRYPT_FAULT; | |
1241 | /* | |
1242 | * Internally, ZFS actually uses ECKSUM for decryption | |
1243 | * errors since EACCES is used to indicate the key was | |
1244 | * not found. | |
1245 | */ | |
1246 | error = ECKSUM; | |
1247 | } else { | |
1248 | record.zi_cmd = ZINJECT_DATA_FAULT; | |
1249 | } | |
1250 | ||
34dc7c2f | 1251 | if (translate_record(type, argv[0], range, level, &record, pool, |
5df39c1e | 1252 | dataset) != 0) { |
02730c33 | 1253 | libzfs_fini(g_zfs); |
34dc7c2f | 1254 | return (1); |
5df39c1e | 1255 | } |
34dc7c2f BB |
1256 | if (!error) |
1257 | error = EIO; | |
1258 | } | |
1259 | ||
1260 | /* | |
1261 | * If this is pool-wide metadata, unmount everything. The ioctl() will | |
1262 | * unload the pool, so that we trigger spa-wide reopen of metadata next | |
1263 | * time we access the pool. | |
1264 | */ | |
1265 | if (dataset[0] != '\0' && domount) { | |
5df39c1e | 1266 | if ((zhp = zfs_open(g_zfs, dataset, |
02730c33 | 1267 | ZFS_TYPE_DATASET)) == NULL) { |
5df39c1e | 1268 | libzfs_fini(g_zfs); |
34dc7c2f | 1269 | return (1); |
5df39c1e | 1270 | } |
1271 | if (zfs_unmount(zhp, NULL, 0) != 0) { | |
1272 | libzfs_fini(g_zfs); | |
34dc7c2f | 1273 | return (1); |
5df39c1e | 1274 | } |
34dc7c2f BB |
1275 | } |
1276 | ||
1277 | record.zi_error = error; | |
1278 | ||
1279 | ret = register_handler(pool, flags, &record, quiet); | |
1280 | ||
1281 | if (dataset[0] != '\0' && domount) | |
1282 | ret = (zfs_mount(zhp, NULL, 0) != 0); | |
1283 | ||
1284 | libzfs_fini(g_zfs); | |
1285 | ||
1286 | return (ret); | |
1287 | } |